CN118102144A - Data transmission method, device, system, equipment and storage medium - Google Patents
Data transmission method, device, system, equipment and storage medium Download PDFInfo
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- CN118102144A CN118102144A CN202211460787.0A CN202211460787A CN118102144A CN 118102144 A CN118102144 A CN 118102144A CN 202211460787 A CN202211460787 A CN 202211460787A CN 118102144 A CN118102144 A CN 118102144A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
- H04L47/52—Queue scheduling by attributing bandwidth to queues
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
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- H—ELECTRICITY
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Abstract
The application relates to a data transmission method, a device, a system, equipment and a storage medium, wherein an optical line terminal divides an uplink time slot into M time slots; m is the number of optical network units that the optical line terminal needs to support; each time slot corresponds to an optical network unit which needs to be supported by an optical line terminal; and for any time slot in the M time slots, transmitting data through the first optical network unit corresponding to any time slot in any time slot. Because each optical network unit that the optical line terminal needs to support corresponds to one time slot, when the optical network unit to be activated that needs to be activated exists in the optical network units that the optical line terminal needs to support, the activation can be completed through the time slot corresponding to the optical network unit to be activated, and no additional quiet window is required to be configured for the optical network unit activation, so that the service delay of the registered optical network unit is not affected.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a data transmission method, apparatus, system, device, and storage medium.
Background
In a passive Optical network (Passive Optical Network, abbreviated as PON) operating network, a common networking system is shown in fig. 1 (fig. 1 is a networking structure schematic diagram of a PON system according to the related art), and the system is composed of a network management server (EMS), an Optical line terminal (Optical LINE TERMINAL, abbreviated as OLT), an Optical distribution network (Optical Distribution Network, abbreviated as ODN), and a plurality of Optical network units (Optical Network Unit, abbreviated as ONUs), a transmission direction from the OLT to the ONUs is a downstream direction (downlink), and a transmission direction from the ONUs to the OLT is an upstream direction (uplink), so as to implement functions such as data service and configuration management.
The PON network adopts a Broadcast transmission method (Broadcast) as a point-to-multipoint topology structure, and adopts a time division multiplexing (Time Division Multiplexing, abbreviated as TDM) method as an uplink direction, and the ONU must transmit an uplink BURST (BURST) signal according to an uplink Bandwidth Map (Bwmap) allocated by the OLT, so that no collision can occur at all times in both the uplink direction OLT and the ONU. When an unregistered ONU needs to be found and activated, in order to avoid an uplink collision, the OLT needs to stop allocating bandwidth to the already-online ONU, and allocate a quiet window (quiet window) for the unregistered ONU to report registration information (including obtaining SN: serial Number and ranging), where the window size is related to the differential distance that the OLT needs to support according to the standard requirement, typically 20KM, and the corresponding quiet window is 250US. During the quiet window transmission, since the traffic bandwidth is stopped from being allocated, the uplink data frame cannot be transmitted, resulting in an increase in transmission delay and jitter. Since the OLT cannot know when to access a new ONU, a quiet window needs to be issued periodically, which has a great impact on the transmission performance of the uplink data frame.
Disclosure of Invention
The application provides a data transmission method, a device, a system, equipment and a storage medium, which are used for solving the problem that a quiet window is required to be additionally configured for optical network unit activation and the service delay of a registered optical network unit is affected.
In a first aspect, a data transmission method is provided, applied to an optical line terminal, including:
Dividing an uplink time slot into M time slots; the M is the number of optical network units which the optical line terminal needs to support; each time slot corresponds to an optical network unit which needs to be supported by the optical line terminal;
And for any time slot in the M time slots, transmitting data through a first optical network unit corresponding to the any time slot in the any time slot.
Optionally, dividing the uplink time slot into M time slots includes:
Dividing the uplink time slot into M target time slots on average;
And determining the M target time slots as the M time slots.
Optionally, for any one of the M timeslots, transmitting data through a first optical network unit corresponding to the any one timeslot by the any one timeslot includes:
Configuring the arbitrary time slot as a quiet window;
Transmitting a sequence number request to the first optical network unit through the quiet window;
switching any time slot from the quiet window to a ranging window after receiving a response to the sequence number request;
After the ranging of the first optical network unit is determined to be completed through the ranging window, switching any time slot from the ranging window to a service window;
And transmitting service data with the first optical network unit through the service window.
Optionally, the transmitting service data with the first optical network unit through the service window includes:
Acquiring a required bandwidth of the first optical network unit;
When the required bandwidth is determined to be smaller than the bandwidth corresponding to the service window, calculating a residual bandwidth and a transmission bandwidth based on the required bandwidth and the bandwidth corresponding to the service window;
Transmitting service data with the first optical network unit through the transmission bandwidth; and allocating the remaining bandwidth to a second optical network unit; and the bandwidth corresponding to the service window matched with the second optical network unit is smaller than the required bandwidth.
Optionally, allocating the remaining bandwidth to a second optical network unit, including:
releasing the matching relation between the residual bandwidth and the first time slot, and establishing the matching relation between the residual bandwidth and the second time slot; the first time slot corresponds to the first optical network unit, and the second time slot corresponds to the second optical network unit.
Optionally, before allocating the residual bandwidth to the second optical network unit, the method further includes:
Acquiring at least one target optical network unit, wherein the bandwidth corresponding to a service window matched with any target optical network unit is smaller than the required bandwidth;
acquiring the priority of each target optical network unit;
The second optical network unit is determined from the at least one target optical network unit based on the priority.
In a second aspect, there is provided a data transmission system comprising:
An optical line terminal and a first optical network unit;
The optical line terminal is used for dividing an uplink time slot into M time slots; the M is the number of optical network units which the optical line terminal needs to support; each time slot corresponds to an optical network unit which needs to be supported by the optical line terminal; and for any time slot in the M time slots, transmitting data through a first optical network unit corresponding to the any time slot in the any time slot.
In a third aspect, there is provided a data transmission apparatus comprising:
The division module is used for dividing the uplink time slot into M time slots; the M is the number of optical network units which the optical line terminal needs to support; each time slot corresponds to an optical network unit which needs to be supported by the optical line terminal;
And the transmission module is used for transmitting data to any time slot in the M time slots through the first optical network unit corresponding to the any time slot in the any time slot.
In a fourth aspect, there is provided an electronic apparatus comprising: the device comprises a processor, a memory and a communication bus, wherein the processor and the memory are communicated with each other through the communication bus;
the memory is used for storing a computer program;
The processor is configured to execute the program stored in the memory, and implement the data transmission method according to the first aspect.
In a fifth aspect, a computer readable storage medium is provided, in which a computer program is stored, wherein the computer program, when executed by a processor, implements the data transmission method according to the first aspect.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: according to the method provided by the embodiment of the application, the optical line terminal divides the uplink time slot into M time slots; m is the number of optical network units that the optical line terminal needs to support; each time slot corresponds to an optical network unit which needs to be supported by an optical line terminal; and for any time slot in the M time slots, transmitting data through the first optical network unit corresponding to any time slot in any time slot. Because each optical network unit that the optical line terminal needs to support corresponds to one time slot, when the optical network unit to be activated that needs to be activated exists in the optical network units that the optical line terminal needs to support, the activation can be completed through the time slot corresponding to the optical network unit to be activated, and no additional quiet window is required to be configured for the optical network unit activation, so that the service delay of the registered optical network unit is not affected.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic diagram of a networking structure of a PON system according to the related art;
fig. 2 is a flow chart of a data transmission method according to an embodiment of the present application;
Fig. 3 is a schematic diagram of configuring window sizes based on the number of optical network units that the optical line terminal needs to support in the embodiment of the present application;
Fig. 4 is a schematic diagram of dynamic allocation of service bandwidth according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a bandwidth management module according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a transmitting module according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a receiving module according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;
Fig. 9 is a schematic structural diagram of a data transmission system according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In order to solve the technical problems in the related art, an embodiment of the present application provides a data transmission method, which may be applied to an optical line terminal, as shown in fig. 2, and the method may include the following steps:
Step 201, dividing an uplink time slot into M time slots; m is the number of optical network units that the optical line terminal needs to support; each time slot corresponds to an optical network unit that the optical line terminal needs to support.
Step 202, for any one of the M timeslots, transmitting data through a first optical network unit corresponding to any one timeslot.
In application, the number of optical network units that the optical line terminal needs to support may be set by a user based on experience or actual requirements, which is not limited in this embodiment.
In the application, the uplink time slot size required by the optical network unit that the optical line terminal needs to support can be obtained in advance, and then the uplink time slot is divided into M time slots (time-slots) according to the uplink time slot size. Of course, in order to improve the data transmission flow, the uplink time slot may be directly divided into M time slots, that is, the time slots of the M time slots are the same in size. The present embodiment is not particularly limited thereto.
In this embodiment, because time slots are allocated to the optical network units supported by the optical line terminal, the time slots simultaneously bear functions of ONU activation, ranging and normal service (regular operation), and when no ONU is registered, default configuration is performed according to a quiet window, so as to find an ONU SN; after receiving ONU SN, OLT switches SN discovery window to ranging window, and completes ranging, ONU enters OPERATION STATE, and time slot is switched to service window (containing OMCI bandwidth); when the ONU is offline, the belonged time slot is switched into a quiet window again, the ONU waits for reporting the SN, and the bandwidth utilization rate can be improved to the maximum extent through the operation.
In particular, in an alternative embodiment, any one of the time slots is configured as a quiet window; transmitting a sequence number request to the first optical network unit through the quiet window; when a response to the sequence number request is received, switching any time slot from a quiet window to a ranging window; after the ranging of the first optical network unit is determined to be completed through the ranging window, switching any time slot from the ranging window to a service window; and transmitting service data with the first optical network unit through the service window.
In the application, the quiet window, the ranging window or the service window of the current position of the time slot can be marked by the bit value of the preset bit in the data frame transmitted by the time slot. That is, when the time slot is used as a quiet window and a ranging window, bit values of preset bits in the transmitted data frame are different, and the same principle is also used for the service window, and will not be explained here.
In one example, a schematic diagram of configuring the window size based on the number of optical network units that the optical line terminal needs to support is given as shown in fig. 3.
In fig. 3, an uplink frame with a frame length of 125US is split into N timeslot, where only for slot1 distance, other slots are processed consistently. PLou is BURST overhead, rspTime is ONU response time, tdn is downstream propagation delay, tup is upstream propagation delay, and Tupmax is actual supported differential distance.
Then the window lengths supported by the different slices are as follows (unit NS)
Window size w=125000/N-PLOu;
Traffic bandwidth Bservice =125000/N-PLOu-Bomci.
Wherein Bomci is the bandwidth used to carry OMCI (Optical Network Unit MANAGEMENT AND Control Interface) traffic.
In the application, considering that the uplink flow demand is changed when the time-slot is taken as a service window, the scenes of bandwidth shortage and bandwidth redundancy exist, and in order to realize the full utilization of the bandwidth, the residual bandwidth in the time-slot can be allocated to the time-slot with the bandwidth demand at the moment so as to realize the full utilization of the bandwidth under the condition that the delay jitter is satisfied.
In a specific implementation, in an alternative embodiment, a required bandwidth of the first optical network unit is obtained; when the required bandwidth is determined to be smaller than the bandwidth corresponding to the service window, calculating the residual bandwidth and the transmission bandwidth based on the required bandwidth and the bandwidth corresponding to the service window; transmitting service data through the transmission bandwidth and the first optical network unit; and allocating the remaining bandwidth to a second optical network unit; the bandwidth corresponding to the service window matched with the second optical network unit is smaller than the required bandwidth.
It should be understood that the remaining bandwidth is the difference between the required bandwidth and the bandwidth corresponding to the traffic window.
In the application, the allocation of the residual bandwidth to the second optical network unit can be realized by establishing a mapping relation between the residual bandwidth and the second time slot of the second optical network unit and releasing the mapping relation between the residual bandwidth and the first time slot of the first optical network unit.
It should be understood that the optical network unit essentially transmits traffic data through the transmission container (T-CONT) on the timeslot when transmitting traffic data through the timeslot, so that when establishing the mapping relationship between the remaining bandwidth and the second timeslot, it actually establishes the mapping relationship between the transmission container and the remaining bandwidth in the second timeslot.
In one example, as shown in fig. 4, the ONU1 to which the time-slot1 belongs includes TCONT1 and TCONT2, and there is a remaining bandwidth after the bandwidth request is satisfied. the ONU1 to which the time-slot2 belongs contains the TCONT3, and the uplink bandwidth request is larger than the allocatable bandwidth, so that the idle bandwidth scheduling part to which the ONU1 belongs is given to the TCONT3. The time delay and the jitter of the ONU1 are not affected, the bandwidth of the ONU2 is satisfied, and the improvement of the bandwidth utilization rate is realized.
In the application, when the uplink flows of the optical network units supported by the optical line terminal have the problem of insufficient bandwidth, the second optical network unit can be determined according to the priorities of the optical network units.
In a specific implementation, in an optional embodiment, before the remaining bandwidth is allocated to the second optical network unit, at least one target optical network unit is obtained, where the bandwidth corresponding to the service window matched with any target optical network unit is smaller than the required bandwidth; acquiring the priority of each target optical network unit; a second optical network unit is determined from the at least one target optical network unit based on the priority.
In the application, the priorities of different optical network units may be preset manually, or may be determined according to the importance or the emergency degree of the service transmitted by the optical network units, or may be determined according to the degree of bandwidth insufficiency of the uplink traffic of the optical network units, for example, the priority of the optical network unit with high degree of bandwidth insufficiency is set to be higher than the priority of the optical network unit with low degree of bandwidth insufficiency, and so on. The present embodiment is not particularly limited thereto.
In the technical solution provided in this embodiment, an optical line terminal divides an uplink time slot into M time slots; m is the number of optical network units that the optical line terminal needs to support; each time slot corresponds to an optical network unit which needs to be supported by an optical line terminal; and for any time slot in the M time slots, transmitting data through the first optical network unit corresponding to any time slot in any time slot. Because each optical network unit that the optical line terminal needs to support corresponds to one time slot, when the optical network unit to be activated that needs to be activated exists in the optical network units that the optical line terminal needs to support, the activation can be completed through the time slot corresponding to the optical network unit to be activated, and no additional quiet window is required to be configured for the optical network unit activation, so that the service delay of the registered optical network unit is not affected.
In addition, in the technical scheme, the time slot allocation of each optical network unit is independent, and the activation/ranging/service bandwidth is integrated, so that the low-time delay and jitter service requirements can be met.
And finally, the residual bandwidth in the partial time-slots is distributed to TCONTs in the time-slots with bandwidth requirements, so that the full utilization of the bandwidth is realized under the condition that the delay jitter is satisfied.
In order to support the optical line terminal to execute the data transmission method, the optical line terminal in this embodiment at least includes a bandwidth management module, a sending module and a receiving module.
As shown in fig. 5, the bandwidth management module has at least the following functions:
managing the number N of optical network units supported by the optical line terminal;
Constructing a quiet window;
Constructing a ranging window;
Constructing a service window;
further realizing the dynamic allocation of bandwidth in the independent time slot of each ONU;
the time slots are distributed evenly by default, the bandwidth utilization rate is considered optionally, the idle time slots are distributed to other time slots based on the TCONT priority, and the size and the position of each time slot are adjusted synchronously.
As shown in fig. 6, the transmitting module has at least the following functions:
and packaging each time slot with complete construction into BWMAP for issuing.
As shown in fig. 7, the receiving module has at least the following functions:
Receiving uplink SN message
An uplink traffic stream is received.
Based on the same conception, the embodiment of the present application provides a data transmission device, and the specific implementation of the device may be referred to the description of the embodiment of the method, and the repetition is omitted, as shown in fig. 8, where the device mainly includes:
A dividing module 801, configured to divide an uplink time slot into M time slots; m is the number of optical network units that the optical line terminal needs to support; each time slot corresponds to an optical network unit which needs to be supported by an optical line terminal;
A transmission module 802, configured to, for any one of the M timeslots, transmit data through a first optical network unit corresponding to any one timeslot.
The dividing module 801 is configured to:
Dividing the uplink time slot average into M target time slots;
And determining M target time slots as M time slots.
The transmission module 802 is configured to:
configuring either slot as a quiet window;
Transmitting a sequence number request to the first optical network unit through the quiet window;
When a response to the sequence number request is received, switching any time slot from a quiet window to a ranging window;
After the ranging of the first optical network unit is determined to be completed through the ranging window, switching any time slot from the ranging window to a service window;
and transmitting service data with the first optical network unit through the service window.
The transmission module 802 is configured to:
Acquiring a required bandwidth of a first optical network unit;
when the required bandwidth is determined to be smaller than the bandwidth corresponding to the service window, calculating the residual bandwidth and the transmission bandwidth based on the required bandwidth and the bandwidth corresponding to the service window;
Transmitting service data through the transmission bandwidth and the first optical network unit; and allocating the remaining bandwidth to a second optical network unit; the bandwidth corresponding to the service window matched with the second optical network unit is smaller than the required bandwidth.
The transmission module 802 is configured to:
Releasing the matching relation between the residual bandwidth and the first time slot, and establishing the matching relation between the residual bandwidth and the second time slot; the first time slot corresponds to a first optical network unit and the second time slot corresponds to a second optical network unit.
The device is also used for:
Before the residual bandwidth is distributed to the second optical network unit, at least one target optical network unit is obtained, and the bandwidth corresponding to a service window matched with any target optical network unit is smaller than the required bandwidth;
Acquiring the priority of each target optical network unit;
A second optical network unit is determined from the at least one target optical network unit based on the priority.
Based on the same concept, the embodiment of the present application provides a data transmission system, and the specific implementation of the system may be referred to the description of the embodiment of the method, and the repetition is omitted, as shown in fig. 9, where the system mainly includes:
An optical line terminal 901 and a first optical network unit 902;
The optical line terminal 901 is configured to divide an uplink time slot into M time slots; m is the number of optical network units that the optical line terminal 901 needs to support; each time slot corresponds to an optical network unit that needs to be supported by the optical line terminal 901; for any one of the M timeslots, data is transmitted through the first optical network unit 902 corresponding to any one of the timeslots.
Based on the same concept, the embodiment of the application also provides an electronic device, as shown in fig. 10, where the electronic device mainly includes: a processor 1001, a memory 1002, and a communication bus 1003, wherein the processor 1001 and the memory 1002 perform communication with each other through the communication bus 1003. The memory 1002 stores a program executable by the processor 1001, and the processor 1001 executes the program stored in the memory 1002 to implement the following steps:
Dividing an uplink time slot into M time slots; m is the number of optical network units that the optical line terminal needs to support; each time slot corresponds to an optical network unit which needs to be supported by an optical line terminal;
And for any time slot in the M time slots, transmitting data through the first optical network unit corresponding to any time slot in any time slot.
The communication bus 1003 mentioned in the above-mentioned electronic device may be a peripheral component interconnect standard (PERIPHERAL COMPONENT INTERCONNECT, abbreviated as PCI) bus, an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated as EISA) bus, or the like. The communication bus 1003 may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one thick line is shown in fig. 10, but not only one bus or one type of bus.
The memory 1002 may include random access memory (Random Access Memory, RAM) or may include non-volatile memory (nonvolatile memory), such as at least one disk memory. Optionally, the memory may also be at least one memory device located remotely from the processor 1001.
The processor 1001 may be a general-purpose processor, including a central Processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), a digital signal processor (DIGITAL SIGNAL Processing, DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable gate array (FPGA) or other Programmable logic device, discrete gate or transistor logic device, or discrete hardware components.
In yet another embodiment of the present application, there is also provided a computer-readable storage medium having stored therein a computer program which, when run on a computer, causes the computer to perform the data transmission method described in the above embodiment.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, by a wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, microwave, etc.) means from one website, computer, server, or data center to another. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape, etc.), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk), etc.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A data transmission method, applied to an optical line terminal, comprising:
Dividing an uplink time slot into M time slots; the M is the number of optical network units which the optical line terminal needs to support; each time slot corresponds to an optical network unit which needs to be supported by the optical line terminal;
And for any time slot in the M time slots, transmitting data through a first optical network unit corresponding to the any time slot in the any time slot.
2. The method of claim 1, wherein dividing the uplink time slot into M time slots comprises:
Dividing the uplink time slot into M target time slots on average;
And determining the M target time slots as the M time slots.
3. The method of claim 1, wherein for any one of the M time slots, transmitting data through the first optical network unit corresponding to the any one of the time slots comprises:
Configuring the arbitrary time slot as a quiet window;
Transmitting a sequence number request to the first optical network unit through the quiet window;
switching any time slot from the quiet window to a ranging window after receiving a response to the sequence number request;
After the ranging of the first optical network unit is determined to be completed through the ranging window, switching any time slot from the ranging window to a service window;
And transmitting service data with the first optical network unit through the service window.
4. A method according to claim 3, wherein the transmission of service data with the first optical network unit through the service window comprises:
Acquiring a required bandwidth of the first optical network unit;
When the required bandwidth is determined to be smaller than the bandwidth corresponding to the service window, calculating a residual bandwidth and a transmission bandwidth based on the required bandwidth and the bandwidth corresponding to the service window;
Transmitting service data with the first optical network unit through the transmission bandwidth; and allocating the remaining bandwidth to a second optical network unit; and the bandwidth corresponding to the service window matched with the second optical network unit is smaller than the required bandwidth.
5. The method of claim 4, wherein allocating the remaining bandwidth to the second optical network unit comprises:
releasing the matching relation between the residual bandwidth and the first time slot, and establishing the matching relation between the residual bandwidth and the second time slot; the first time slot corresponds to the first optical network unit, and the second time slot corresponds to the second optical network unit.
6. The method of claim 4, further comprising, prior to allocating the remaining bandwidth to the second optical network unit:
Acquiring at least one target optical network unit, wherein the bandwidth corresponding to a service window matched with any target optical network unit is smaller than the required bandwidth;
acquiring the priority of each target optical network unit;
The second optical network unit is determined from the at least one target optical network unit based on the priority.
7. A data transmission system, comprising:
An optical line terminal and a first optical network unit;
The optical line terminal is used for dividing an uplink time slot into M time slots; the M is the number of optical network units which the optical line terminal needs to support; each time slot corresponds to an optical network unit which needs to be supported by the optical line terminal; and for any time slot in the M time slots, transmitting data through a first optical network unit corresponding to the any time slot in the any time slot.
8. A data transmission apparatus, comprising:
The division module is used for dividing the uplink time slot into M time slots; the M is the number of optical network units which the optical line terminal needs to support; each time slot corresponds to an optical network unit which needs to be supported by the optical line terminal;
And the transmission module is used for transmitting data to any time slot in the M time slots through the first optical network unit corresponding to the any time slot in the any time slot.
9. An electronic device, comprising: the device comprises a processor, a memory and a communication bus, wherein the processor and the memory are communicated with each other through the communication bus;
the memory is used for storing a computer program;
The processor is configured to execute a program stored in the memory, and implement the data transmission method according to any one of claims 1 to 6.
10. A computer readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the data transmission method of any one of claims 1-6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211460787.0A CN118102144A (en) | 2022-11-17 | 2022-11-17 | Data transmission method, device, system, equipment and storage medium |
| PCT/CN2023/104160 WO2024103769A1 (en) | 2022-11-17 | 2023-06-29 | Data transmission method, apparatus and system, and device and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211460787.0A CN118102144A (en) | 2022-11-17 | 2022-11-17 | Data transmission method, device, system, equipment and storage medium |
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| CN118102144A true CN118102144A (en) | 2024-05-28 |
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| CN202211460787.0A Pending CN118102144A (en) | 2022-11-17 | 2022-11-17 | Data transmission method, device, system, equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101242434A (en) * | 2007-02-07 | 2008-08-13 | 杭州华三通信技术有限公司 | A data transmission method and its transmission device in coaxial network |
| WO2020062162A1 (en) * | 2018-09-29 | 2020-04-02 | 华为技术有限公司 | Method and apparatus for allocating uplink light-emitting time slots to optical network device |
| US11134506B2 (en) * | 2019-01-02 | 2021-09-28 | Nokia Technologies Oy | Systems and methods for avoiding delays for ULL traffic |
| CN114430372A (en) * | 2020-10-29 | 2022-05-03 | 南京中兴新软件有限责任公司 | Bandwidth allocation method, optical line terminal, optical network unit and storage medium |
| CN113891192B (en) * | 2021-11-01 | 2024-02-27 | 中国电信股份有限公司 | Control method, device and equipment for data transmission in industrial network |
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| WO2024103769A1 (en) | 2024-05-23 |
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